PCI
Short for Peripheral Component Interconnect, PCI was introduced by Intel in 1992, revised in 1993 to version 2.0, and later revised in 1995 to PCI 2.1 and is as an expansion to the ISA bus. The PCI bus is a 32-bit computer bus that is also available as a 64-bit bus and was the most commonly found and used computer bus in computers during the late 1990's and early 2000's. Below is a graphic illustration of the PCI slot on a motherboard.

Examples of PCI devices
PCI device drivers
If you're looking for PCI drivers, you most likely need to get the drivers for the installed PCI device. For example, if you need a PCI Ethernet adapter driver you need the drivers for the PCI network card. See our drivers section for all computer drivers.
- Exclamation mark on PCI to ISA bridge in Windows.
- Determining the PCI version.
- Unknown PCI device in Windows device manager
- Identifying an unknown PCI card.
- Help with the PCI bus and other computer bus standards is found on our computer bus help page.
Also see: Bus, Mini PCI, Motherboard definitions, PCI Express, PCI-X, PIIX, PXI
